Connector for electrical conductors.



H. E. DENMAN.

CONNECTOR FO-R ELECTRICAL CONDUCTORS.

APPLICATION FILED JAN-31,1914.

1,156,349. Patented Oct. 12, 1915.

2 SHEETSSHEF 1.

v r r; f (q WITNESSES:

BY I M K532i) ATTORNEYS H. E. DENMAN.

CONNECTOR FOR' ELECTRICAL CONDUCTORS.

APPLICATION FILED JAN. 3!. I9I 4 Patented Oct. 12, 1915.

2. SHEETS-SHEET 2.

WITNESSES:

" HUGH E. DENMAN, F SLAYDEN,.TEXAS.

connnc'ronron ELECTRICAL, CONDUCTORS.

. To all whom it may concern:

, wherein Be it known that I, HUGH E. DENMAN,

a citizen of the United States, residing at Slayden, in the county of Gonzales and State of Texas, have invented certain new and useful Improvements in Connections for Electrical Conductors, of which the following is a specification.

This invention relates to new and useful improvements in connections for electrical conductors.

The object of the invention is to provide a connection of i the character described which is specially adapted for connecting the wiring of railway coaches. and for like 1 purposes and may be used for making such connections wherever it is desired and is specially adapted to be used where it is necessary to often connect and disconnect electrical conductors.

A further feature of the invention resides in the provision of a mechanism which is simple in construction and application and which will always insure a positive connection, between the conductors sought to be connected. a

With the above and other objects in view, the invention has particular relation to cereatures of construction, operof which is given in this specification and illustrated in the accompanying drawings,

Figure 1 is a fragmentary plan View of the adjacent ends of two railway cars, showing the connection applied thereto. Fig. 2

is a fragmentary side elevation thereof.

Fig. 3 is a side elevation, partially in section, of one of said connections, and Fig. i is an end view thereof.

Referring now more particularly to the drawings, wherein like numerals of reference designate similar parts in each of the figures, the numerals 1 and 2 refer, respectively, to railway coaches. These coaches have the usual over-head wiring, consisting of the wires 3 and 4., to which are connected the lamps 5 in the usual and well known manner. These wires 3 and 4 extend from end to end of the cars and when the train is made up the corresponding wires are connected so as to form a complete conductor for electricity throughout the length of the train. With the present equipment for con necting the wires of one carwith those of another, considerable time is consumed in I Specification'of Letters Patent.

Patented Oct. 12, 1915.

- Application filed January 31, 1914. Serial No. 815,852.

and shifted from one position to another in the operation of the trains. This device has been provided so that when two cars are coupled together the conducting wires of one car will be automatically connected to those of the other car and when the cars are uncoupled the electrical connections thereof will readily separate.

Each end of each car is provided with a casting 6 which is boltedthereto, as shown in Fig. 4 and said casting has an internally threaded socket 7 'at each end, provided to receive the exteriorly threaded end of the pipe section. 8, which extends through the end wall of the car. Within the section 8 are other pipe sections 9 considerably smaller in diameter than said section 8 and these sections 9 are extended and passed through alined orifices 10 in the casting 6. Each pipe section 9 is provided with an annular shoulder 11 within the section 8 so as to limit its outward movement. The inner end of each section 8 has a cap 12 threaded thereon which has a central orifice 13 through which the pipe section 9 plays. Within each pipe section 8 and surrounding the section 9 is a coil spring 14, which isjinterposed between the shoulder 11 and cap 12, the purpose of which will be hereinafter set forth. A copper wire, or other conductor, 15, extends axially through the pipe section 9'and within said section and surrounding said wire is suitable insulating material 16. The inner end'of each conductor 15 has a suitable binding post 17 to which the corresponding wire of the car is attached in the ordinary and well known manner.

The outer end of each of the sections 9 is exter'iorly threaded and has the metallic flange 18 threaded thereon, which supports a copper plate 19 and interposed between this plate and flange is a layer of insulating material 20 and the conductor 15 passes through said layer 20 and has connection with the copper plate 19.

As shown in Figs. 1 and 2 the connections carried by one end of any car,- are in alinement with those of the adjacent end of the adjoining car, so that when the cars are coupled together the connections of the cars will contact, one with the other and a complete circuit will he formed from one car together each connection will be forced ineach of said members, a means carried byeach of said tubes for limiting its movement in one direction, a resilient cushion resisting against the corresponding tubes when moved in the other direction, and forming yieldable seats therefor, an electrical conductor extending axially through each of said tubes, insulating material surrounding each of said conductors, a head secured on one end of each o'f said tubes, each head carrying, on its outer face, a convex insulated metallic plate with which the conductor of the corresponding tube connects and binding posts carried by the other ends of said tu es.

2. A device of the character described consisting of apair of hollow members, an

inner tube extending lengthwise through each of said members, a means carried byeach'of said tubes for limiting its movement in one direction, a resilient cushion surrounding each tube and resisting against said tube when the tube is moved in the other direction, an electrical conductor extending axially through each tube, insulating material surrounding each conductor, a a

binding post carried by one end of each tube and-an enlarged head circular in form an insulator interposed between said plate and the tube carrying the same.

3. A device of the character described consisting of a pair of hollow members, an inner tube extending lengthwise through each of said members, a shoulder carried by each of said tubes and engaging with its corresponding member and limiting its movement in one direction, a resilient cushion surrounding each tube and forming a resilient seat for the tube, when the tube is moved'in the other direction, an electrical conductor, extending axially through each tube, insulating material surrounding each conductor, a binding post, carried by one end of each tube, the outer end of each head being convex and formed of a metallic plate, in connection with the conductor of its corresponding tube and an insulator interposed between said plate and the tube carrying the same.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

v HUGH E. DENMAN.

Witnesses:

J. S. DoUcLAss, L. J. WHITTLES'EY}. 

